Home / 120,443.22-180,631.71-50,310.90

Finding the Fourth Proportional to 120,443.22, 180,631.71 and 50,310.90

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Solution

The fourth proportional to 120,443.22, 180,631.71 and 50,310.90 is: 75,452.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,443.22 : 180,631.71 = 50,310.90 : x
  2. Step 2: Convert to fraction form
    120,443.22/180,631.71 = 50,310.90/x
  3. Step 3: Cross multiply
    120,443.22x = 180,631.71 × 50,310.90
  4. Step 4: Simplify right side
    120,443.22x = 9,087,743,898.64
  5. Step 5: Solve for x
    x = 9,087,743,898.64/120,443.22
  6. Step 6: Final answer
    x = 75,452.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.